Failure of B6 deficiency to affect performance of aging rats in a passive avoidance task.

Male Fischer-344 rats from three age groups (6-7, 15-16, and 27-29 months) were given either a pyridoxine deficient diet or control diet for five weeks. Differences in body weight produced by the diets were evident in the youngest age groups but not in the oldest group in which all animals tended to lose weight. There was no evidence that diet or age affected performance during passive avoidance learning.